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Photoassisted poling of azo dye doped polymeric films at room temperature (1992)

Sekkat, Z. ; Dumont, M.

Springer

Applied physics 54 (1992), S. 486-489

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ISSN: 1432-0649

Keywords: 82.40-m ; 78.65Hc ; 42.79Gn

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The reversible cis-trans photoisomerization of disperse red 1 (DR1) in PMMA thin films has been demonstrated to be strongly polarization sensitive [1]. In this communication two mechanisms are identified: the angular hole burning and the angular redistribution of molecules. It is shown that, in the presence of a DC electric field, the redistribution is not centrosymmetric and produces a poling of the film. The evolution of the second-order nonlinear susceptibility, χ(2), is monitored by measuring the electro-optic effect by attenuated total reflection and by second-harmonic generation.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00325395

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